We found 25 dictionaries that define the word operating:

General (16 matching dictionaries)

1. operating: Merriam-Webster
2. operating: Collins English Dictionary
3. operating: Vocabulary.com
4. Operating, operating: Wordnik
5. operating: Cambridge Advanced Learner's Dictionary
6. operating: Wiktionary
7. operating: Infoplease Dictionary
8. operating: Dictionary.com
9. operating: Cambridge Essential American English Dictionary
10. Operating: AllWords.com Multi-Lingual Dictionary
11. operating: Webster's 1828 Dictionary
12. operating: FreeDictionary.org
13. operating: Mnemonic Dictionary
14. operating: TheFreeDictionary.com
15. Operating: Online Plain Text English Dictionary
16. operating: Rhymezone

Business (5 matching dictionaries)

17. operating: Merriam-Webster Legal Dictionary
18. MoneyGlossary.com (No longer online)
19. INVESTORWORDS (No longer online)
20. Glossary of Legal Terms (No longer online)
21. operating: Legal dictionary

Computing (1 matching dictionary)

22. operating: Encyclopedia

Medicine (2 matching dictionaries)

23. operating: Merriam-Webster Medical Dictionary
24. operating: Medical dictionary

Miscellaneous (1 matching dictionary)

25. operating: Idioms

(Note: See operate as well.)

Definitions from Wiktionary (operating) ▸ adjective:  In operation; that operates. ▸ adjective:  Involved in an operation. ▸ noun:  (uncountable) Synonym of operation (in the uncountable sense). Similar: operational, operative, in operation, operation, functioning, running, working, performing, servicing, maintaining, more... Opposite: inactive, nonfunctional, broken, idle, stopped Phrases: operating system, operating systems, operating costs, operating expenses, operating room, more... Adjectives: non, firm, only, self, net, annual, longer, present, individual, single, total Colors:     blue,     green,     red,     yellow,     orange, more... ▸ Words similar to operating ▸ Usage examples for operating ▸ Idioms related to operating ▸ Wikipedia articles (New!) ▸ Popular adjectives describing operating ▸ Popular nouns described by operating ▸ Words that often appear near operating ▸ Rhymes of operating ▸ Invented words related to operating